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Modify Baton Ryusoku Flat Hopup Bucking for Airsoft AEGs (Model: Hard)

ID: 43035 (BU-GB-05-63)
4.6 stars, based on 25 reviews
Modify Baton Ryusoku Flat Hopup Bucking for Airsoft AEGs (Model: Hard)
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Model Options:


  • Works with standard AEG hopups and barrels
  • Flat hop provides more consistent contact and backspin on BBs
  • Improve accuracy, range, and groupings
  • Improved air seal
  • Suitable for .25g BBs and heavier
Compatibility: For most Standard Airsoft AEG Inner Barrels
Material: Rubber
Package Includes: Hopup Bucking, Hopup Nub

Manufacturer: Modify

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25 Customer Reviews

(Write a review)

by JL P. on 01/12/2018
"The only reason Im giving this a 4 out of 5 is because when this came there was a hole in the packaging of the bucking and I had to dig for many minutes to find the nub for the bucking. I have yet to install this!
by Matthew D. on 01/09/2018
"I have just started r-hopping my guns and the hard bucking works flawlessly. Will be using these on all of my r-hopped guns!
by Edward M. on 11/23/2017
"I bought the soft model to go into my Echo 1 MP5-J. The fit was pretty snug so definitely take your time putting it into the hop up. The nub is pretty good.

My gun stock runs about 120-150 feet effective range. With this bucking and nub I can go a little more 250 feet total range with .25g EF bio-BBs. I think if I were to hop a .28g or heavier and put a little more spin on it I can reach out further. However my goal was to go beyond 200 feet as a gun that can operate in indoor/CQB and outdoor fields. My FPS was more consistent as it went down from a 5 +/- FPS swing to

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